the first working version

projects/Xcode15/main.c

@@ -20,29 +20,23 @@
 //------------------------------------------------------------------------------------------
 typedef enum GameScreen { LOGO = 0, TITLE, GAMEPLAY, ENDING } GameScreen;
 
-//------------------------------------------------------------------------------------
-// Program main entry point
-//------------------------------------------------------------------------------------
-int ios_main(int argc, char * argv[])
-{
-    // Initialization
-    //--------------------------------------------------------------------------------------
 const int screenWidth = 800;
 const int screenHeight = 450;
-
-    InitWindow(screenWidth, screenHeight, "raylib [core] example - basic screen manager");
-
 GameScreen currentScreen = LOGO;
-
-    // TODO: Initialize all required variables and load all required data here!
-
 int framesCounter = 0;          // Useful to count frames
 
+void ios_ready(){
+    // Initialization
+    //--------------------------------------------------------------------------------------
+    InitWindow(screenWidth, screenHeight, "raylib [core] example - basic screen manager");
+
+    // TODO: Initialize all required variables and load all required data here!
     SetTargetFPS(60);               // Set desired framerate (frames-per-second)
     //--------------------------------------------------------------------------------------
+}
 
-    // Main game loop
+
-    while (!WindowShouldClose())    // Detect window close button or ESC key
+void ios_update()
 {
     // Update
     //----------------------------------------------------------------------------------
@@ -51,7 +45,6 @@ int ios_main(int argc, char * argv[])
         case LOGO:
         {
             // TODO: Update LOGO screen variables here!
-
             framesCounter++;    // Count frames
             
             // Wait for 2 seconds (120 frames) before jumping to TITLE screen
@@ -140,6 +133,7 @@ int ios_main(int argc, char * argv[])
     //----------------------------------------------------------------------------------
 }
 
+void ios_destroy(){
     // De-Initialization
     //--------------------------------------------------------------------------------------
 
@@ -148,5 +142,4 @@ int ios_main(int argc, char * argv[])
     CloseWindow();        // Close window and OpenGL context
     //--------------------------------------------------------------------------------------
 
-    return 0;
 }

projects/Xcode15/raylib.xcodeproj/project.pbxproj

@@ -341,6 +341,11 @@
 				CURRENT_PROJECT_VERSION = 1;
 				DEVELOPMENT_TEAM = A7A93GC9AY;
 				GCC_C_LANGUAGE_STANDARD = gnu17;
+				GCC_PREPROCESSOR_DEFINITIONS = (
+					"DEBUG=1",
+					GRAPHICS_API_OPENGL_ES2,
+					PLATFORM_IOS,
+				);
 				GCC_WARN_64_TO_32_BIT_CONVERSION = NO;
 				GCC_WARN_UNINITIALIZED_AUTOS = YES;
 				GENERATE_INFOPLIST_FILE = YES;
@@ -379,6 +384,10 @@
 				CURRENT_PROJECT_VERSION = 1;
 				DEVELOPMENT_TEAM = A7A93GC9AY;
 				GCC_C_LANGUAGE_STANDARD = gnu17;
+				GCC_PREPROCESSOR_DEFINITIONS = (
+					GRAPHICS_API_OPENGL_ES2,
+					PLATFORM_IOS,
+				);
 				GCC_WARN_64_TO_32_BIT_CONVERSION = NO;
 				GCC_WARN_UNINITIALIZED_AUTOS = YES;
 				GENERATE_INFOPLIST_FILE = YES;

src/platforms/rcore_ios.c

@@ -49,10 +49,17 @@
 // TODO: Include the platform specific libraries
 #include "libEGL/libEGL.h"
 
+// iOS only supports callbacks
+// We are not able to give users full control of the game loop
+extern void ios_ready();
+extern void ios_update();
+extern void ios_destroy();
+
 #import <UIKit/UIKit.h>
 
 /* GameViewController */
 @interface GameViewController : UIViewController
+- (void)update;
 @end
 
 /* AppDelegate */
@@ -476,10 +483,17 @@ int InitPlatform(void)
         EGL_NONE
     };
 
+//    const EGLint contextAttribs[] =
+//    {
+//        EGL_CONTEXT_CLIENT_VERSION, 2,
+//        EGL_NONE
+//    };
+    
     const EGLint contextAttribs[] =
     {
-        EGL_CONTEXT_CLIENT_VERSION, 2,
+        EGL_CONTEXT_MAJOR_VERSION, 2,
-        EGL_NONE
+        EGL_CONTEXT_MINOR_VERSION, 0,
+        EGL_NONE,
     };
 
     EGLint numConfigs = 0;
@@ -590,7 +604,7 @@ int InitPlatform(void)
     CORE.Storage.basePath = GetWorkingDirectory();
     //----------------------------------------------------------------------------
 
-    TRACELOG(LOG_INFO, "PLATFORM: CUSTOM: Initialized successfully");
+    TRACELOG(LOG_INFO, "PLATFORM: IOS: Initialized successfully");
 
     return 0;
 }
@@ -632,6 +646,11 @@ void ClosePlatform(void)
     platform.viewController = self;
 }
 
+- (void)update
+{
+    ios_update();
+}
+
 - (bool)prefersStatusBarHidden
 {
     return true;
@@ -644,10 +663,14 @@ void ClosePlatform(void)
 - (BOOL)application:(UIApplication *)application didFinishLaunchingWithOptions:(NSDictionary *)launchOptions {
     // Override point for customization after application launch.
     self.window = [[UIWindow alloc] initWithFrame:[UIScreen mainScreen].bounds];
-    NSLog(@"bounds: %@", NSStringFromCGRect([UIScreen mainScreen].bounds));
     self.window.backgroundColor = [UIColor redColor];
     self.window.rootViewController = [[GameViewController alloc] init];
     [self.window makeKeyAndVisible];
+    
+    ios_ready();
+
+    CADisplayLink *displayLink = [CADisplayLink displayLinkWithTarget:self.window.rootViewController selector:@selector(update)];
+    [displayLink addToRunLoop:[NSRunLoop currentRunLoop] forMode:NSDefaultRunLoopMode];
     return YES;
 }
 
@@ -668,11 +691,11 @@ void ClosePlatform(void)
     // Restart any tasks that were paused (or not yet started) while the application was inactive. If the application was previously in the background, optionally refresh the user interface.
 }
 
-@end
+- (void)applicationWillTerminate:(UIApplication *)application {
+    ios_destroy();
+}
 
-// To allow easier porting to android, we allow the user to define a
+@end
-// main function which we call from android_main, defined by ourselves
-extern int ios_main(int argc, char *argv[]);
 
 /* main() */
 int main(int argc, char * argv[]) {

src/rcore.c

@@ -502,7 +502,7 @@ const char *TextFormat(const char *text, ...);              // Formatting of tex
     #include "platforms/rcore_drm.c"
 #elif defined(PLATFORM_ANDROID)
     #include "platforms/rcore_android.c"
-#elif defined(PLATFORM_IOS) || defined(PLATFORM_IOSSIMULATOR)
+#elif defined(PLATFORM_IOS)
     #include "platforms/rcore_ios.c"
 #else
     // TODO: Include your custom platform backend!

src/rlgl.h

@@ -815,7 +815,14 @@ RLAPI void rlLoadDrawQuad(void);     // Load and draw a quad
     #include "external/glad.h"          // GLAD extensions loading library, includes OpenGL headers
 #endif
 
-#if defined(GRAPHICS_API_OPENGL_ES3)
+#if defined(PLATFORM_IOS)
+    #ifndef GRAPHICS_API_OPENGL_ES2
+        #error "GRAPHICS_API_OPENGL_ES2 required on PLATFORM_IOS"
+    #endif
+    #include "libGLESv2/GLES/glext.h"
+    #include "libGLESv2/GLES2/gl2.h"
+    #include "libGLESv2/GLES2/gl2ext.h"           // OpenGL ES 2.0 extensions library
+#elif defined(GRAPHICS_API_OPENGL_ES3)
     #include <GLES3/gl3.h>              // OpenGL ES 3.0 library
     #define GL_GLEXT_PROTOTYPES
     #include <GLES2/gl2ext.h>           // OpenGL ES 2.0 extensions library